516045857 has 2 divisors, whose sum is σ = 516045858. Its totient is φ = 516045856.

The previous prime is 516045851. The next prime is 516045883. The reversal of 516045857 is 758540615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370216081 + 145829776 = 19241^2 + 12076^2 .

It is a cyclic number.

It is not a de Polignac number, because 516045857 - 2⁴ = 516045841 is a prime.

It is not a weakly prime, because it can be changed into another prime (516045851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258022928 + 258022929.

It is an arithmetic number, because the mean of its divisors is an integer number (258022929).

Almost surely, 2^516045857 is an apocalyptic number.

It is an amenable number.

516045857 is a deficient number, since it is larger than the sum of its proper divisors (1).

516045857 is an equidigital number, since it uses as much as digits as its factorization.

516045857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 516045857 is about 22716.6427317066. The cubic root of 516045857 is about 802.1016909712.

The spelling of 516045857 in words is "five hundred sixteen million, forty-five thousand, eight hundred fifty-seven".